I pulled the following codes:

17698 - Coolant Temp Sensor at Radiator Outlet (G83): Signal too Small
P1290 - 002 - Lower Limit Exceeded - Intermittent

18161 - Tiptronic Switch (F189): Implausible Signal
P1753 - 35-10 - - - Intermittent



Anybody have experience with these problems or come accross any DIY or part #s? I looked around both here and AW for each fault code, but all i can find are bits and pieces of explanations...